Finding the Fourth Proportional to 652,031.40, 976,880.70 and 402,421.80
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Solution
The fourth proportional to 652,031.40, 976,880.70 and 402,421.80 is: 602,912.82
Step by Step Solution
- Step 1: Write the proportion equation
652,031.40 : 976,880.70 = 402,421.80 : x - Step 2: Convert to fraction form
652,031.40/976,880.70 = 402,421.80/x - Step 3: Cross multiply
652,031.40x = 976,880.70 × 402,421.80 - Step 4: Simplify right side
652,031.40x = 393,118,089,679.26 - Step 5: Solve for x
x = 393,118,089,679.26/652,031.40 - Step 6: Final answer
x = 602,912.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.